<div>
    <!-- 头部 -->
     
    <van-button @click="gotTab">去tab页</van-button>
    <van-icon name="https://b.yzcdn.cn/vant/icon-demo-1126.png" />
    <van-icon name="cart-o" color="#1989fa" />
    <van-icon name="fire-o" color="#ee0a24" />
</div>


